Does not fail when `EnvironmentFile` does not exist. about docker-systemctl-replacement

[gdraheim]

Actually it should bump into a file-not-found exception.

def read_env_file(self, env_file): # -> generate[ (name,value) ]
    """ EnvironmentFile=<name> is being scanned """
    if env_file.startswith("-"):
        env_file = env_file[1:]
        if not os.path.isfile(env_file):
            return
    try:
        for real_line in open(env_file): # <<<<<<<<<<<<<<<<<

Can you give an example where it does fail quickly?

[gdraheim]

fixed along with test_3060